How to call an XML node from a nested loop?

programming flash
1

My nested loop works fine, but I don’t know how to call out a node or set of nodes in my code. Here is what I have. Can you help?

    knobCC = [];
    knobCCC = [];
            
    var hardware = this.firstChild.childNodes;
    for (var i=0; i<hardware.length; i++){

        var categoryA = hardware*;
        var knobA = categoryA.childNodes;
        knobCC* = hardware*.childNodes;

        for (var j=0; j<knobA.length; j++){
            var knobB = knobA[j];
            
            knobCCC* = hardware*.firstChild.nodeValue;
            knobCC*[j] = knobCCC*.childNodes[j].firstChild.nodeValue;
            
            trace(knobCC*[j]);
        }
        
    }